"She was a piece of work, man. Khloé was no good for him and he's better off without her! She got my son into a lot of s--t," he told the publication. "Lamar's life and his career went downhill as soon as he got involved with her. He just didn't need all that drama in his life."

Joe, who In Touch previously reported was sick in the hospital, added, "His career suffered as a result and he lost some good years. He just didn't need all that. She stopped his job."